lightmap calculation

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3DProgrammer
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Joined: 2004-12-12, 05:12

lightmap calculation

Post by 3DProgrammer » 2004-12-22, 12:41

Hi Carsten!

How do you calculate the lightmaps for your levels? Is it radiosity based? Know any good websites where i can learn this stuff?

Thanks
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Carsten
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Re: lightmap calculation

Post by Carsten » 2004-12-22, 16:11

3DProgrammer wrote:How do you calculate the lightmaps for your levels? Is it radiosity based?
Yes.
Know any good websites where i can learn this stuff?
No, but a few good books.
Please have a look at this FAQ: http://www.ca3d-engine.de/phpBB2/viewtopic.php?t=32

I just added two books there about radiosity. "Computer Graphics, Principles and Practise" has a good section about radiosity, and the two books below it are all about radiosity. The one by Ashdown is no longer in print, afaik.
I used all three for implementing CaLight, but mostly the upper two.
Best regards,
Carsten
RAZOR
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Location: New Zealand

Post by RAZOR » 2004-12-23, 12:42

Just as a point of curiosity, what are you impressions of photon mapping?
No-one quite knows why I'm here...
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Carsten
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Post by Carsten » 2004-12-23, 20:51

RAZOR wrote:Just as a point of curiosity, what are you impressions of photon mapping?
To be honest, I don't know enough about it yet and cannot clearly relate or compare it to ray-casting or radiosity methods, but I'll soon have a thorough look into http://graphics.ucsd.edu/~henrik/papers/book/

When I'm through with the book :book:, maybe it will eventually find its way into Ca3DE. Maybe this becomes a booster for CaLight, after all. :wink:
Best regards,
Carsten
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